3973481 has 2 divisors, whose sum is σ = 3973482. Its totient is φ = 3973480.

The previous prime is 3973469. The next prime is 3973483. The reversal of 3973481 is 1843793.

3973481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2941225 + 1032256 = 1715^2 + 1016^2 .

It is a cyclic number.

It is not a de Polignac number, because 3973481 - 2¹⁴ = 3957097 is a prime.

It is a super-2 number, since 2×3973481² = 31577102514722, which contains 22 as substring.

Together with 3973483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3973483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1986740 + 1986741.

It is an arithmetic number, because the mean of its divisors is an integer number (1986741).

Almost surely, 2^3973481 is an apocalyptic number.

It is an amenable number.

3973481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3973481 is an equidigital number, since it uses as much as digits as its factorization.

3973481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 3973481 is about 1993.3592250269. The cubic root of 3973481 is about 158.3885246805.

The spelling of 3973481 in words is "three million, nine hundred seventy-three thousand, four hundred eighty-one".